<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>布局标签</title>
    <style>
        div{
            background-color: #0000FF;
        }
        span{
            background-color: red;
        }
    </style>
</head>
<body>
    <!--
        div标签：块元素

        span标签：行内元素



    -->
    <div><span>bbb</span>
        <span>bbb</span>
        <span>bbb</span>
        <span>bbb</span>
        <span>bbb</span>
        <span>bbb</span>
        <span>bbb</span></div>
    <div><span>bbb</span>
        <span>bbb</span>
        <span>bbb</span>
        <span>bbb</span>
        <span>bbb</span>
        <span>bbb</span>
        <span>bbb</span></div>
    <div><span>bbb</span>
        <span>bbb</span>
        <span>bbb</span>
        <span>bbb</span>
        <span>bbb</span>
        <span>bbb</span>
        <span>bbb</span></div>
    <div><span>bbb</span>
        <span>bbb</span>
        <span>bbb</span>
        <span>bbb</span>
        <span>bbb</span>
        <span>bbb</span>
        <span>bbb</span></div>
    <div><span>bbb</span>
        <span>bbb</span>
        <span>bbb</span>
        <span>bbb</span>
        <span>bbb</span>
        <span>bbb</span>
        <span>bbb</span></div>
    <div><span>bbb</span>
        <span>bbb</span>
        <span>bbb</span>
        <span>bbb</span>
        <span>bbb</span>
        <span>bbb</span>
        <span>bbb</span></div>
    <div>

        <span>bbb</span>
        <span>bbb</span>
        <span>bbb</span>
        <span>bbb</span>
        <span>bbb</span>
        <span>bbb</span>
        <span>bbb</span>
    </div>

    <span>bbb</span>
</body>
</html>